preserve

preserve verb [ T ] uk/prɪˈzɜːv/ us preserve verb [T]
(TREAT)

to add substances to something so that it stays in good condition for a long time

консервировать, заготавливать впрок
to preserve food/wood

PRESERVE noun

uk/prɪˈzɜːv/ us preserve noun
(ACTIVITY)

an activity that only a particular group of people can do

что-либо предназначенное для ограниченного круга людей
Sport used to be a male preserve . Owning racehorses is the preserve of the rich. preserve noun